Pulse

Pulse Oximeter

A normal level of oxygen is usually 95% or higher. Some people with chronic lung disease or sleep apnea can have normal levels around 90%. The “SpO2” reading on a pulse oximeter shows the percentage of oxygen in someone's blood. If your home SpO2 reading is lower than 95%, call your health care provider.


Make sure your hand is warm to the touch. Then rest it on your chest for five minutes. Switch the pulse oximeter on. Then attach the clip of the pulse oximeter to the finger next to your thumb, or your middle finger